From Event: SPIE BiOS, 2018
We present a new interferometric and holographic approach which allows for multiple depth multiplexing in a single acquisition, using an off-axis low-coherence interferometric imaging system. This technique enables quantitative amplitude and phase imaging of multiple slices within a thicker sample, in one single image acquisition. The method is implemented using a compact interferometric module that connects to a regular digital camera, and is useful in a wide range of applications in which multiple z slices of a sample are required simultaneously. The simultaneous acquisition is carried out by using optical multiplexing of the interferograms on the camera, whereby each slice has a distinct off axis interference fringe direction in relation to the other. We demonstrate the proposed technique for quantitative optical thickness imaging of microscopic biological samples.
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Lauren Wolbromsky and Natan T. Shaked, "Multiple depth multiplexing in off-axis low-coherence interferometric imaging (Conference Presentation)," Proc. SPIE 10503, Quantitative Phase Imaging IV, 105030A (Presented at SPIE BiOS: January 28, 2018; Published: 15 March 2018); https://doi.org/10.1117/12.2286846.5752154082001.